JP7315831B2 - liquid heating container - Google Patents

Description

TECHNICAL FIELD The present invention relates to a liquid heating container such as an electric kettle for heating and boiling a liquid, and more particularly, a long vapor discharge route provided in a lid body is taken to condense the vapor, thereby reducing the amount of vapor discharge. It relates to a liquid heating vessel that can be reduced.

In an electric kettle, a container body provided with a heating means is placed on a power base, power is supplied from the power base to the container body, and the heating means is energized (see Patent Document 1, for example). When the water boils, grab the handle, tilt the container body, and pour out the hot water from the spout. The container main body is closed by a lid, and the lid is formed with a pouring channel that communicates the container main body and the spout. The pouring path communicates with the core space in which the core is arranged, and the valve plate provided in the core connects or disconnects the core space and the container body, thereby allowing pouring of molten metal. controlled.

The lid is formed with a vapor discharge route for condensing (liquefying) vapor generated by heating in the container body and discharging the vapor to the outside through the spout. A steam chamber is provided on the downstream side of the container body in the steam discharge route, and a part of the steam that has flowed into the steam chamber is condensed in the steam chamber. In addition, the steam chamber is connected to the pouring channel on the downstream side of the steam release route, and the steam that has flowed into the steam chamber is directly released from the spout through the pouring channel to the outside.

Japanese Patent No. 6265225

Even if the core space and the container body are blocked by the valve plate, the container body communicates with the spout through the steam release route. When the hot water boils, the steam generated in the container body partially condenses in the steam chamber. As a result, most of the steam escapes through the spout without condensing. Therefore, it is desirable to take a long steam release route and effectively condense the steam along the steam release route to suppress the release of steam. However, it has been difficult to take a long vapor discharge route due to the demand for a smaller lid body. Further, when a long steam discharge route is taken, there is a risk of clogging due to dew condensation water acting as a water seal in the route. Furthermore, when the container body is overturned, hot water leaks out from the spout through the steam release route. There was a case where the internal pressure increased and the hot water splashed out vigorously, causing a splash.

SUMMARY OF THE INVENTION An object of the present invention is to provide a liquid heating container in which a long vapor discharge route provided in a lid body is taken to condense vapor to reduce the amount of vapor discharge.

The liquid heating container of the present invention is
a container body having a spout on the upper edge;
A lid that closes the container body, comprising: a pouring path communicating with the pouring spout; a space communicating with the pouring path and communicated with and shut off from the container body by a valve plate; and communicating with the container body. a lid body comprising a steam chamber for
A liquid heating vessel comprising:
the steam chamber communicates with the container main body behind the lid,
The space and the steam chamber communicate with each other through an escape path on the front side of the lid.

The escape path is a hole formed at the tip of a cylinder projecting upward from the steam chamber,
A guide rod for preventing inclination of the valve plate may be slidably arranged in the cylinder.

It is preferable that the escape path is provided with a structure for preventing clogging of condensed water.

According to the liquid heating container of the present invention, since the vapor chamber extending forward from the rear of the lid body is provided, a long vapor discharge route can be taken. The amount of steam emitted can be reduced. Further, by adopting the clogging prevention structure for the escape passage, which is relatively narrow in the steam release route, it is possible to prevent the steam release route from being clogged with dew condensation water. Even when the liquid heating container is overturned and the hot water enters the steam discharge route, the steam discharge route is not clogged by making the steam discharge route hard to be clogged, and the hot water is prevented from splashing out due to the increase of the internal pressure.

FIG. 1 is a perspective view of an electric kettle. 2 is a cross-sectional view of the vicinity of the lid along line II-II in FIG. 1. FIG. FIG. 3 is a cross-sectional view of the main part of the lid shown in FIG. FIG. 4 is a cross-sectional view of the lid cut in the left-right direction along a plane including the drain hole. FIG. 5 is a perspective view of the lid body, showing a state in which the lid body cover and the steam chamber cover are removed. FIG. 6 is an enlarged view of the guide tube and the relief passage, showing an embodiment employing a taper as a clogging prevention structure. FIG. 7 is an enlarged view showing an embodiment in which a guide bar is provided with needles as a clogging prevention structure. FIG. 8 is an enlarged view showing an embodiment employing a plug member as a clogging prevention structure.

A liquid heating container of the present invention will be described with reference to the drawings. In the following description, the electric kettle 10, which is a kettle-type electric water heater, will be exemplified as the liquid heating container, but the liquid heating container is not limited to the electric kettle 10, and may be an electric pot or the like.

As a schematic configuration, the electric kettle 10 includes a kettle-shaped container body 20, a lid body 30 attached to the container body 20, and a power base 12 on which the container body 20 is placed, as shown in FIG.

The container body 20 can adopt a double structure of an outer cover 21 forming an outer shell and an inner container 27 (a part of which is shown in FIG. 2) formed inside the outer cover 21 and filled with water or hot water. A spout 28 is formed on the front upper edge of the inner container 27, and a handle 22 that is gripped by the user is provided on the rear side of the outer cover 21. - 特許庁

The container main body 20 incorporates a heating means such as a heater (not shown). By operating a switch 23 provided on a handle 22, the container body 20 is supplied with power from the power supply base 12 to heat the inner container 27, and the inner container 27 is heated. Boil the water contained in the

As shown in FIGS. 1 and 2, the lid 30 is provided with a lid button 32 for controlling pouring. By pressing the lid button 32, the inner container 27 forms a pouring route A (see FIG. 2) in which the inner container 27 communicates with the pouring spout 28 via a core space 40 and a pouring path 47, which will be described later. In this state, the hot water in the inner container 27 is poured out from the spout 28 by lifting the container main body 20 by holding the handle 22 and tilting the container main body 20 toward the spout 28 side.

As shown in FIGS. 2 to 4, the lid body 30 includes a lid body 35 having an enlarged upper portion and a lid cover 31 forming the upper surface, and is detachably fitted to the inner container 27 . A ring-shaped seal packing 36 is attached to the lower edge of the lid body 35. As shown in FIG. 29 to keep the inner container 27 liquid-tight.

The lid body 30 is provided with a pouring path 47 communicating with the spout 28 so as to be inclined obliquely downward toward the rear when the lid body 30 is attached to the inner container 27 . A rear end of the pouring path 47 communicates with a short cylindrical core space 40 recessed in the lower surface of the lid body 35 . In the core space 40, as shown in FIGS. 2 to 4, a core 60 that moves up and down in conjunction with the lid button 32 is slidably arranged. The core 60 is provided with a valve plate 61 having a seal member 62 arranged on the outer periphery thereof so as to be able to contact the lower edge of the core space 40. When the valve plate 61 is separated from the core space 40, the core space 40 is closed. It communicates with the inner container 27 . Further, the valve plate 61 abuts against the lower edge of the core space 40, so that the seal member 62 isolates the core space 40 from the inner container 27 to maintain a liquid-tight state. This operation is performed in conjunction with the lid button 32 urged upward by the spring 33 (see FIGS. 2 and 3), and the lid button 32 is linked with the upper end of the valve stem 63 of the core 60. there is When the lid button 32 is pressed, the valve plate 61 moves downward together with the core 60 to open the core space 40 from the inner container 27 . When the lid button 32 is pressed again, the core 60 is moved upward by the biasing force of the spring 33 , and the valve plate 61 blocks the core space 40 from the inner container 27 .

Due to the downward movement of the core 60, the valve plate 61 opens the core space 40 to the inner container 27, so that the inner container 27 and the core space 40 are communicated with each other. A pouring route (arrow A in FIG. 2) connecting the spout 28 through the hot water path 47 is formed. Water or hot water is poured out from the spout 28 by tilting the container body 20 forward in this state.

In this embodiment, as shown in FIG. 2, the core space 40 is provided slightly forward of the lid body 30. Therefore, when the core 60 protrudes the valve stem 63 from the center of the valve plate 61, the valve The rod 63 will be positioned near the front. As a result, the lid button 32 also needs to be provided not in the center of the lid body cover 31 but in a position closer to the front, which is not preferable in terms of design. Therefore, the valve stem 63 protrudes slightly rearward from the valve plate 61 , that is, at the center of the lid body cover 31 . Therefore, when the valve stem 63 is moved up and down, the valve plate 61 may incline and may not be slid in parallel. . The guide rod 64 is slidably fitted in a guide cylinder 42 recessed upward from the top surface 41 of the core space 40 .

In addition to the pouring route A, the container body 20 has a steam release route (arrow B in FIG. 2) for releasing steam generated when water boils in the inner container 27 to the outside. The steam release route B is a passage from the inner container 27 through the lid 30 to the core space 40 and the pouring path 47 to the spout 28 . In the steam release route B, a steam chamber 50 for condensing (liquefying) steam is provided in the lid 30 in order to reduce the amount of steam released to the outside. liquefy the part.

In this embodiment, the steam release route B passes from the inner container 27 through the handle inner passage 24 that enters the handle 22 on the back side of the inner container 27 . As shown in FIG. 2, the inner handle passage 24 is provided with a steam detecting means 25 such as a bimetal switch. , the heating by the heating means is stopped.

The in-handle passage 24 communicates with a steam chamber 50 formed in the lid 30 . The steam chamber 50 may be formed above the core space 40, for example as shown in FIGS. 2-4. In the illustrated embodiment, a steam chamber cover 51 is attached to the upper portion of the top surface 41 of the core space 40 to define the steam chamber 50 .

As shown in FIG. 4 , the steam chamber 50 is formed with condensed water reservoirs 52 that are lowered along both sides of the core space 40 . A hole 53 is formed. Condensed water condensed in the steam chamber 50 is temporarily stored in the condensed water reservoir 52, and when the user pours hot water, the lid button 32 is operated to open the drain hole 53 and drain the condensed water to the inner container 27. I am trying to let it fall.

In the steam chamber 50, a position higher than the drain hole 53, in this embodiment, as shown in FIGS. A pressure release path 43 is formed. FIG. 5 is a perspective view of the lid body 35, showing a state in which the lid body cover 31 and the steam chamber cover 51 are removed. Referring to the figure, the escape path 43 is a hole formed in the upper end of the guide cylinder 42, and part of the steam that has flowed into the steam chamber 50 passes through the escape path 43 as indicated by the arrow B in FIG. Then, the steam is released to the outside through a steam release route leading to the core space 40, the pouring path 47, and the spout 28. The escape path 43 is provided relatively forward of the steam chamber 50 among the lids 30 in order to condense the steam that has flowed in from the rear of the steam chamber 50 as much as possible and suppress the amount of steam released to the outside. The distance of route B is made long.

The escape passage 43 provided in the guide cylinder 42 is the narrowest passage in the steam release route B. As shown in FIG. Therefore, there is a possibility that the escape passage 43 may be clogged with dew condensation water. Therefore, as shown in FIG. 6, the escape path 43 preferably has a structure 70 for preventing clogging. The clogging prevention structure 70 of FIG. 6 is a taper 71 that expands the diameter of the relief passage 43 provided on the core space 40 side. By providing the taper 71, it is possible to improve the passage of steam and prevent water sealing due to condensed water.

FIG. 7 also shows a different embodiment of an anti-clog structure 70 . In the embodiment of FIG. 7, a guide rod 64 that reciprocates in the guide cylinder 42 has a needle 72 that is shaped to enter the relief path 43, for example, a sharp needle 72 as shown in the drawing. When the guide rod 64 is lifted within the guide tube 42 by movement, the needle 72 may enter the relief passage 43 to break the water seal due to the condensed water.

2 and 3, the steam that has passed through the escape passage 43 passes through the guide cylinder 42 that constitutes the steam discharge route B, passes through the core space 40, passes through the pouring passage 47, and reaches the spout 28. discharged to According to the present invention, the steam release route B can be lengthened to condense the steam, thereby reducing the amount of steam released. In addition, a condensed water clogging prevention structure 70 is adopted for the escape passage 43, which is a narrow passage in the steam release route B, to prevent the escape passage 43 from being clogged with condensed water and blocking the steam release route B. can. Furthermore, since the escape passage 43 has a structure that is difficult to clog, even if the container main body 20 is overturned, the increase in the internal pressure of the steam chamber 50 and the like can be suppressed. be.

The above description is for the purpose of illustrating the present invention and should not be construed as limiting the invention described in the claims or restricting the scope thereof. Further, the configuration of each part of the present invention is not limited to the above-described embodiment, and of course various modifications are possible within the technical scope described in the claims.

For example, the configurations of the core space 40, the steam chamber 50, the pouring route A, the steam discharging route B, etc. are not limited to those of the above-described embodiment, and the arrangement, size, and the like can be variously changed. Further, although the relief passage 43 is provided in the guide tube 42 in the above-described embodiment, it can be provided in a portion other than the guide tube 42 . On the other hand, even when the guide tube 42 is provided with the escape path 43 , the hole serving as the escape path 43 may be formed in the side surface of the guide tube 42 instead of the tip.

Furthermore, as a clogging prevention structure 70 for the escape passage 43, as shown in 8(a), a plug member 73 such as a ball is arranged in the guide tube 42 between the escape passage 43 and the guide rod 64. You can also The plug member 73 normally rests on the guide rod 64 due to its own weight and opens the escape path 43 . However, as shown in FIG. 8(b), when the container body 20 overturns, the plug member 73 rolls on the inner surface of the obliquely downward guiding tube 42 and closes the escape path 43. As shown in FIG. By adopting the plug member 73 that closes the escape passage 43 when the container body 20 is overturned in this way, the escape passage 43 through which steam normally passes can have a large inner diameter, and clogging due to condensed water can be prevented. be.

10 Electric Kettle 20 Container Body 27 Inner Container 28 Spout 30 Lid 40 Core Space 43 Escape Path 47 Pouring Path 50 Steam Chamber 70 Clogging Prevention Structure A Pouring Route B Steam Release Route

Claims (3)

a container body having a spout on the upper edge;
A lid that closes the container body, comprising: a pouring path communicating with the pouring spout; a space communicating with the pouring path and communicated with and shut off from the container body by a valve plate; and communicating with the container body. a lid body comprising a steam chamber for
A liquid heating vessel comprising:
the steam chamber communicates with the container main body behind the lid;
The space and the steam chamber communicate with each other through an escape path on the front side of the lid ,
The escape path is a hole formed at the tip of a cylinder projecting upward from the steam chamber,
A guide rod that prevents tilting of the valve plate is slidably arranged in the cylinder,
Liquid heating container. The escape path is provided with a structure for preventing clogging of condensed water.
A liquid heating container according to claim 1. a container body having a spout on the upper edge;
A lid that closes the container body, comprising: a pouring path communicating with the pouring spout; a space communicating with the pouring path and communicated with and shut off from the container body by a valve plate; and communicating with the container body. a lid body comprising a steam chamber for
A liquid heating vessel comprising:
the steam chamber communicates with the container main body behind the lid;
The space and the steam chamber communicate with each other through an escape path on the front side of the lid,
The escape path is provided with a structure for preventing clogging of condensed water .
Liquid heating container.

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